diff -up evolution-data-server-3.22.7/camel/providers/imapx/camel-imapx-server.c.imapx-idle-server-leak evolution-data-server-3.22.7/camel/providers/imapx/camel-imapx-server.c
--- evolution-data-server-3.22.7/camel/providers/imapx/camel-imapx-server.c.imapx-idle-server-leak	2017-03-20 10:07:46.000000000 +0100
+++ evolution-data-server-3.22.7/camel/providers/imapx/camel-imapx-server.c	2017-06-05 16:08:13.983713415 +0200
@@ -6318,6 +6318,7 @@ imapx_server_run_idle_thread_cb (gpointe
 	}
 
 	g_mutex_unlock (&is->priv->idle_lock);
+	g_object_unref (is);
 
 	return FALSE;
 }